In short
EPA Section 608 certification is required for technicians who maintain, service, repair or dispose of equipment that could release refrigerant. There are four levels: Type I for small appliances, Type II for high-pressure systems, Type III for low-pressure systems, and Universal for all three. Everyone takes the core section plus the type section. Tests are given by EPA-approved certifying organizations, and the certification does not expire.
| Type | Covers | Typical equipment |
|---|---|---|
| Core | Required for every type | Ozone depletion, regulations, recovery, safety |
| Type I | Small appliances | Window units, household refrigerators, vending machines |
| Type II | High-pressure and very high-pressure equipment | Residential split systems, heat pumps, commercial refrigeration |
| Type III | Low-pressure equipment | Low-pressure centrifugal chillers |
| Universal | Types I, II and III | Everything above |
How testing works
Each section is a multiple choice test from an EPA-approved certifying organization. Many HVAC schools, supply houses and online programs offer it. Ask the testing organization how its exam is proctored and what score passes. Most techs aim for Universal so they never have to retest for a new job.
Starting an HVAC program?
Many include EPA 608 testing. Tell us your ZIP to see programs nearby.
Study tips
Learn the differences between CFCs, HCFCs and HFCs, the recovery requirements for each equipment type, cylinder safety and leak repair basics. Then take our EPA 608 practice test.
Straight answers
Does EPA 608 certification expire?
No. Section 608 technician certification is good for life, though you must keep proof of it.
Which EPA 608 type should I get?
Universal, if you can. It covers every type of equipment and makes you easier to hire.
Can I take the EPA 608 test online?
Some approved certifying organizations offer remotely proctored exams. Check that the organization is EPA-approved.
Do I need EPA 608 to buy refrigerant?
Sales of most refrigerants are restricted to certified technicians under EPA rules.